Automatic shotgun.



H. B. FEBIGER.

AUTOMATIC sHoTGUN. APPLICATION FILED FBB.19, 1913. Patented May 12 aslums-SHEET 1.

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AUTOMATIC sHoTGUN. APPLICATION FILED I'BBJQ. 1913.

Patented May 12, 19M.

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INVENTUR ATTORNEYS Patented May 12, 1914.'

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Patented May 12, 1914.

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Patented May 12, 1914.

H, B. FBBIGER.

AUTOMATIC SHOTGUN.

APPLICATION FILED 21:13.19, 191s.

ATTORNEYS UNITED 'STATES PAIE-NT OFFICE.

. HENRY B. FEBIGER, OF NEW ORLEANS, LOUISIANA, ASSIGNOB 0F ONE-EIGHTH T0COLLINS C. DIBOLL- AND THREE-EIGHTHS T0 JOHN C. FEBIGER, JR., OF NEWORLEANS, LOUISIANA.

AUTOMATIC SHOTGUN.

Specification 'o'fJLetters Patent.l

Patented May 12, 1914.

To allfwhom 'it may conce/m Be it known that I, HENRY B. Fumonn, a.citizen of the United States, residing in the city of New Orleans,parish of Orleans, State of Louisiana, have invented a new and usefulAutomat-ic Shotgun, o-f which the following is a specification.

My invention consists ofl an automatic shotgun in which the recoil ofthe barrel and breech-block sets the ring pin and causes the explodedshell to be ejected and a fresh cartridge to-be fed from the magazlne.

It further consists of an improved sear and trigger mechanism in suchgun.

It further consists of improved mea-ns for holding the breech-block inits recoiled position until the barrel has returned to normal position,the exploded shell has been ejected, and a fresh cartridge has been fed.

It further consists of'improved means for connecting and disconnectingthe breechblock and barrel.

It further consists of improved means for feeding the cartridges fromthe magazine.

It further consists of improved means for stopping the successivecartridges in the magazine as each is fed to the feeder, and forsuccessively releasing them.

It further consists of improved means for feeding the cartridges to thereceiver.

It further consists of improved means for locking the barrel to thebreech-block during the recoil of the latter.

It further consists of improved means for 'withdrawing the firing-pin.

It further consists of other-novel features of construction, all as willbe hereinafter fully set forth.

The annexed drawings and the following description set forth in detailone mechanical form embodying the invention,'such detail constructionbeing but one of various mechanical forms in which the principle of theinvention may be used.

In said annexed drawings Figure 1 represents a. longitudinal section ofmy improved fire-arm, illustrating the parts thereof in position readyfor firing. Fig. 2 represents a longitudinal section of the tire-armafter iii-ing and with the barrel and breech-block recoiled. Fig. 3represents a longitudinal section of the fire-arm with the parts infeeding position. Fig. 4 represents a longitudinal section of thelire-arm, illustrating Fig. 5

` hand side of the lire-arm.

the breech-block and carrier in elevation.` u represents a longitudinalsection illustrating said parts as seen from thc left- 4 Fig. 6represents a longitudinal horizontal section taken on the line -m inFig. l. Fig. 7 represents a longitudinal horizontal section on the linel.1/--3/ m Fig. 4. Fig. 8 represents a side-elev ation of the fire-arm.Fig. 9 represents a side-elevation of a part of thebarrel and an axialsect-ion of the fore-arm and magazine. llFig. 10 represents a sectionaldetail view of the outer end of the fore-arm and magae zine. tion of theplug for the forward end of the magazine.

Fig. 11 represents `a transverse sec- F ig. 12 represents a top planView of the breech-block. Fig. 13 represent-s a slde elevation of thebarrel-extensionj Fig. 14 represents a perspective detail view yof thesliding stop for the breech-block. .F 1g. 15 represents a transversesection on the line z-z in Fig. 1. Fig. 16 represents a transversesection on the line a-co in Fig. 1. Fig. 17 represents a transversesection on the line b-; in Fig. l. Fig. 18 represents a transversesection of one-half ofthe receiver on the line 0 0 in Fig. 1. 'Fig 19represents a front-end view of the receiver. Fig. 2O represents a partsection and part side-elevationof the receiver and the ends of thebarrel and magazine, Fig. 21 represents a longitudinal horizontalsection on the line y-y in Fig. 4, showing the maga 'zine empty. Fig. 22represents a top-plan view of a portion of the barrel extension and ofthe breech-block.

Similar numerals of reference indicate corresponding parts in thefigures.

Referring to the drawings, the reference numeral 1 indicates the stockof the firearm, toV which a receiver, 2, comprising a top, 147, ofsubstantially cylindrical outline, iat side-walls, 148, and a forwardwall or block, 70, and having tangs` 3 and 4, is secured, all of whichparts are formed from one integral piece of metal. A trigger vand. sea-rframe, 5, having a triggerfguard, 6, and longitudinal flanges, 7, issecured between the side-walls of said receiver, being inserted throughthe open bottom of the same. A trigger, 8, is pivoted between saidflanges and has a. rearwardly projecting lugq 9, to which a post, 10` ispivotally connected, which post slides in a bearing. 11, between theflanges and has a spring, 12,

' upper tang,

whichltends to throw the trigger forward. The upperl ortion of thetrigger has a forwardiy longitudlnal bore, 14, having a slot, 15, in theupper side of its forward end. A plunger, 16, slides in said bore andbears against a spring, 17, witlun the salne, and the forward end ofsaid plunger has a web, 18, slidable in said slot and projecting toengage and be stopped by a pin, 19, secured between the ianges. :Theforward end of the plunger has a nose, 20, projecting beyond the forwardend of the arm of the trigger. A" sear, 21, slides with a nearlyvertical slt, 22, upon a pin, 23, between the lianges, and has aSear-shoulder, 24, upon its upper edge, and a shoulder, 25, upon itsrear edge, which shoulder may be engaged by the nose upon thespring-plunger in the trigger-arm. A pin, 26, extends from the loweredge of the Sear and slides in a. bore, 27, in the trigger-frame, and aspring, 28, is coiled around said pin to force the sear upward.

The barrel, 29, has it rear, reduced and screw-threaded end secured in athreaded socket, 30, in the forward end of a barrelextensicn, 31, havinga sliding fit within the upper portion of the receiver and having itsbottom, right-hand side and rear end open. A breech-block, 32, has asliding t in said extension and in the receiver, having footflanges, 33and 34, sliding upon a shoulder, 35, and in a groove, 36, respectively,in the side-walls of the receiver. The rear end of the breech-block isformed with ears, 37, between which the forked forward end, 38, of amain-spring rod, 39, is pivoted upon a pin, 40, and the rear end of saidrod bears against a piston, 41, sliding in a tube, 42, in the stock ofthe gun and bearing against a main-spring, 43, confined in said tube.The forward end of said main-spring tube is secured in an enlargement,44, upon the and the rear end of the tube is secured in the foot of thestock, so that said tube serves as a fastening for the receiver to thestock, and the lower tang is secured to the stock by a screw, 45,passing through the stock and into said enlargement of the upper tang.The breech-block is formed with an oblique bore, 46, extending from thelower rear corner to the center of the frontface, and the forward end ofsaid bore is contracted to form a stop for a shoulder, 47, at thereduced forward end of a firing-pin, 48, having play in said bore. Afiringspring, 49, is coiled around the firing-pin and bears against arearwardly-facing shoulder, 50, upon the pin, and against a threadedcollar, 51, in the bore, to thro-w the pin forward. The rear end, 52,.of the firing pin is preferably flat or polygonal to slide in thecorrespondingly shaped rear portion of the bore, and has aforwardly-facing roJecting arm, 13, formed with a' Sear-shoulder, 53,which engages the upper shoulder of the sea-r when the breech-block isthrown forward. A longitudinal bore, 54, is yformed in the upper part ofthe breechblock, and a bolt, 55, is journaled to rock in said bore andhas two oblique flanges, 56,

upon its rear port-ion, which flanges will be engaged by the ends of twofingers, 57, in the closed rear end of the receiver when thebreech-block is thrown rearward, thereby giving the bolt a one-quarterturn. A torsion-spring, 58, has one end secured to the4 forward end ofthe bolt andits other end secured to a screw-plug, 59, in the forwardend of the bore, to reverse the twist of the bolt when the latter isreleased from the fingers. A locking-screw, 60, secures the screw-plugagainst turning under the torsional strain of the spring. The bore ofthe breech-block has an enlargement, 61, opening through the top of thesame, and the inner face of the top of the barrel-extension has arecess, 62, which registers with the opening of said enlargement whenthe breech-block is fully within the barrel-eX- tension with its forwardend closing the chamber in the barrel. An eccentric block, 63, upon therotary bolt fits tobe turned into and out of engagement with the recessin the barrel-extension, when such recess registers with the opening ofthe enlargement in the breech-block, whereby such breech block andextension may be locked together and unlocked by rotating the bolt. Acamlug, 64, projects laterally from the eccentric block and through anopening, 65, in the enlargement of the bore for the bolt, into the borefor the firing-pin to engage a forwardly facing shoulder, 66', upon saidpin, whereby the latter will be slightly withdrawn when the bolt isrotated, to draw its forward end into the boie. The eccentric block hasan oblique shoulder, 146, and the rear end of the barrel extension hasan oblique edge, 147, which willengage such oblique shoulder when thebreech-block moves forward to turn the rotary bolt and permit theeccentric block to be turned and pass beneath the extension as thebreech-block moves forward.

A magazine-tube, 67, has its threaded rear end, 68, screwed into anopening, 69, in the forward wall or block, 70, of the receiver. Aspool-shaped plunger or follower, 71, is slidable within said tube andhas the lrear end of a coil-spring, 72, bearing within a socket, 73, inthe forward end of the, plunger. The forward end of said spring bearsagainst a` plug, 74, secured in the forward end of the tube.V Said plughas a diametrical slot, 75, within which a longitudinally slotted shank,76, of a finger-piece, 77, slides upon a pin, 78, passed through theplug at right angles to the slot. The forward'portion of the slot in theplug extends through the sides of the same, and" the tube has coryresponding slots, A79, in lits end, so that the linger-piece can bedrawn out and turned at a right angle upon the pin to have its shankengage the slots in the tube, as indicated in dotted lines in Fig. 1"0of the drawings, when the tube may be turned to screw its rear end intoor out of the threaded opening in the receiver. A fore-arm, 80. has thesmaller 4forward portion, 81, of its bore fitted upon the tube and itsrea-r end secured in the front-block of the receiver by atongue-and-groove connection, 82. A col-lar, 88, is secured upon theforward end of the tube by means of screws, 84S, movable in slots in thetube against which the plug bears and bears against the forward end ofthe fore-arm, thus securing the latter to the tube. A collarbracket, 85,is secured upon the under side of the barrel to be slidable upon thetube and within a large rear portion, 86, of the bore in the fore-arm,and a coiled action-spring, 87, coiled upon the tube, has its forwardend bearing against the slidable collar. and its rear end bearingagainst a rigid collar, 88, upon the tube. f

A carrier comprises a long ,ritudinally7 slotted arm, S9, having aheaded .finger-piece or stop, 90, sliding in its slot, and extendingforwardly from a yoke, 91, having area-rwardly extending long arm, 92,and a rearwardly, extending short arm, 93, at its ends and fulcrumedupon a pin, 94, secured through the forward ends of the flanges of thetrigger-frame. The forward end of the slotted arm extends to near therear end of the magazine-tube. -A cam-arm, 95, carrying a roller, 96, inits outer end, is pivotedl upon the rear end of the long actuating arm92 of the carrier, and the inner end of said cam-arm has a cam-surface,97, which bears against a spring-bolt, 98, vin a bore in said actuatingarm and having a= spring, 99, forcing it rearward. The short arm of thecarrier has a shoulder, 100, upon its lower edge,

against which bears an upwardly acting spring, 101` so that the normaltendency of the carrier is to have its slotted forward arm tilteddownward, ywhile said spring is weaker than the spring within the arm.The inner face of the left-hand wall of the carrierchamber, 102, in thereceiver, has an undercut recess, 103, at its rear edge, in which slidesa locking-bolt,104, having a spring, 105, forcing it upward. and formedupon its upper end with a hump, 106, or cam inclined forward andrearward, and lwith a rearwardly facing shoulder, 107, which engages anotch, 108, in the forward end of the under side of the breech-block. Acambulge, 109, is formed upon the rear end of the lower edge of thebarrel-extension to depressf the hump and locking-bolt when the barrelis moved forward after recoil. The inner face of theright-hand wall ofthe carrier-chamber has an undercut recess, 110,- at

its forwardv edge, in which slides a flat bolt,

111, having a spring, 112, forcing it up'- `ward, and formed upon itsupper edge witha rearwardly facing, steeply inclined camshoulder, 113,which is engaged and depressed, when the breech-'block is inl itsforward position, by a cam-lug, 114, projecting downward froml the sideof said block. The inner face of said bolt has stop-lug, 115, at itsforward edge, which lug will project inward, a short distance across therear end of the magazine tube, when the bolt is in its upper position,to stop rearward movement of the cartridge in the magazine, and leavesuch end unobstructed when the bolt is depressed.

A lever. 116, is fulcrumed within the righthand wall of the receiver torock laterally, and the forward end, 117, of said lever is bent inwardto project into the rear end of the magazine, and hasits widened innerend inclined in opposite directions. The rear arm of this lever isinwardly inclined, and the rear end, 145, is bent upward to engage anotch, 146, in a pin, 118, transversely slidable and rocking in thesides of the receiver. Said notch is of sulicient depth to admit of thepin rocking and of the end of the arm engaging it. A spring, 119, bearsagainst a shoulder upon the pin and is con` nected to the pin and thewall of the receiver, so as to normally push the pin to the right and atthe same time exert torsion upon the pin.` A stop or pawl, 120, projectsupward and rearward from the pin to engage a notch, 121, in the underside of the breech-block when the pin and pawll are moved to theirextreme right-hand position by the spring, when the lever is free torock by the inwardly bent forward end of the latter being free to enterthe rear end of the magazine when the latter is empty or versely slidingpin projects beyond the outer face of the wall bf the receiver to admitof the pin being shifted by pressure upon the projecting end.

A stop-lever, 122, is pivoted in a recess.l 123, in the inner face ofthe left-hand wall of the carrier-chamber, and has a spring, 124,bearing against its rear arm. normally holding said lever flush with theface ofthe wall, and the forward arm of said lever has a stud orbutto-n, 125, extending'through the wall of the chamber to admit of theforward arm of the stop-lever being projectedV into the carrier-chamber.

A spring-actuated hooked extractor, 126, is pivotally mounted in agroove, 127, in the forward end of the right side of the-breechblock toenter the chamber of the rbarrel and engage the rim of the cartridge, soas to extract the shell as the breech-blockv recoils.

A longitudinal groove, 128, is formed in the inner face of the side ofthe barrel-extension, and has an enlargement, 129, and a sprin ejector,V130, is'secured with its head, 131, 1n such enlargement, and has aforwardly-facin shoulder 132, at its free rear end. The le t-hand sideof the breech-block has a groove, 133, toadmit of'said shoulder projecting beyond the face of the wall.

The forwardly extending arm. of the trigger is formed with a shoulder,134, at the inner end of its under side, and with a notch, 135,adjoining said shoulder. A safetycatch is formed by a slide, 136,longitudinally slidable over a slot, 137, in the triggerframe and havingan upwardly projecting lug, 138, upon its rear end and a fingerpiece,139, sliding in the slot. When the slide is moved to bring its lugbeneath the shoulder of the trigger-arm, the trigger cannot be pulled,and when the slide is moved to bring its lug to register with the notchin the trigger-arm, the trigger may be pulled. The upper side of theslide has two notches, 140, which are engaged'by the end of a spring,141, so that the catch may be held in safety or free position. The rightside-wall of the carrier chamber has an ejectionopening, 142, with whichthe open side of the barrel-extension registers when in yforwardposition. The trigger and sear frame is secured in the receiver by ascrew, l143, and the bolt 94, upon which the carrier is fulcrumed.

In practice, when the magazine is to be loaded, the shells, 144, areinserted through the open bottom of the carrier-chamber, pushing theslotted carrier-arm upward, and are pushed into the rear end of themagazine, each shell pushing the plunger forward in the magazine. Thestop-lever is pushed inward by its button as each shell is inserted, tostop the shell from being again pushed out by the magazine-spring. Assoon as the loading is finished, the slotted carrier-arm flies downward,and the lastinserted shell is, forced rearward with its head bearingagainst the sliding stop in the slotted carrier arm. When now the barrelis pushed rearward, it will move the breechblock with it and release thebolt or cartridge-stop carrying the lug, so that such stop may moveupward, bringing the lug upon the same into the path of the succeedingcartridge and preventing the same from entering the carrier-chamber. Thebarrel is now pushed rearward, carrying the breechblock with it, andwhen the breech-block arrives at its rearmost position, the shoulderupon the locking-bolt will move upward and engage the notch in .theforward end of the breech-block and retain it in such position. Therearward movement of the breech-block will tilt the cam-arm upon thelong arm of the carrier rearward, placing the springbolt in said latterarm under tension. When the barrel is again allowed to .be drawn forwardby the action-spring, the spring-bolt will tilt the carrier to raise theslotted arm and the cartridge, to bring the forward end of the 'same inregister with the chamber of the barrel and its head in line with thefor- Ward end of the breech-block, as seen in Fig. 3 of the drawings.,When the barrel and its extension arrive at the forward end of theirmovement, the cam-bulge upon the barrel extension will bear against thehump upon the locking-bolt and depress the same, disengagin its shoulderfrom the notch in the breechlock and allowing the latter to move forwardunder the action of the mainspring. .The forward movement of thebreech-block straightens the cartridge and carries it forward into thechamber of the barrel, as seen in Fig. 1. The rearward movement of thebarrel and breech-block caused the rear end of the rotary lockingbolt inthe latter to have its `oblique flanges engage the fingers in the rearend of the receiver to be rotated, thus bringing the eccentric blockupon the .rod out of engagement with the' recess in the barrel-extensionto allow the barrel and extension to be ymoved forward by theaction-spring without moving the breech-block and, at the same time,

allowingthe cam-lug upon said block to engage the Ishoulder upon theliring-pinto draw the latter partly into its bore, so'that itsprojecting end shall not strike the fulminating'cap of the cartridgewhen the breechblock moves forward. When the breechblock moves forwardand the oblique flanges upon the rotary bolt are released from thelingers, the oblique edge of the barrel extension engages the obliqueshoulder of the ec'- centric block upon the rotary bolt and keeps thesame turned so that the breech-block may pass into the barrel-extension.As the breech-block moves forward, the searshoulder vupon `thetiring-pin engages the shoulder of the sear, drawing such pin into theblock as the latter moves forward. When said block arrives within thebarrelextension, the torsion spring will rotate the rotary bolt to turnthe eccentric block into the recess in the breech-extension and todisengage its cam-lug from the firing-pin. When during these movementsthe breechblock arrived at its foremost position, the cam-lug upon itsforward end depressed the locking-bolt in the forward end of thecarrier-chamber and allowed another cartridge to be fed onto thecarrier-arm, which tilted down as soon, as (the breech-block releasedthe cam-arm at the rear end of the carrier. When the trigger. is pulled,it will pull down the sear and release the firing-pin, whose spring willdrive it forward'to strike the fulminating cap, exploding the cartridge.The recoil of the explosion will recoil the zo't breech-block and, thelatter being locked with the barrel extension, the barrel and extensionwill also recoil, and the above' described action will be repeated, withthe addition that, as there nowis an empty shell in the chamber, theextractor will pull the latter out ofthe chamber when the barrel travelsforward and the shoulder of the ejector in the extension will tilt suchshell when it strikes the head'- of the latter, and eject itV throughthe ejection-opening', whereupon a fresh cartridge is fed and theoperation may be repeated; As the plunger in the arm of the trigger isdrawn inward by the webupon the same engaging the pin 19, and its noseis-consequently disengaged from the shoulder 'upon the sear, when thetrigger is fully pulled, the sear can again` move upwa-rd in position-toengage the shoulder upon the firing-pin while the trigger is yet heldpulled. When the last cartridge in the magf a'zine has been fed, theVspool-shaped follower moves into the carrier-chamber, and

the inwardly projecting' cam-end of the stop` lever 116 is forcedinward, the lever is rocked, and the transverse pin is moved to theright by its spring, placing the pawl thereon in the path' of the notchin the under side of the'breech-block. When the breechblock recoils atthe next fire, the pawl will' engage the notch in the breech-block andstop the same in its rear position while the barrel and extension willmove forward, ejecting the empty shell. New cartridges may now becharged into the magazine through the open bottom of the carrier.chamber, the finger-operated stop-lever-l preventing the magazine-springfrom forcY ing the cartridge back, until the magazine is fully charged,when the gun is again ready for action. The cartridges in the rear endof the magazine keep the pawl in inoperative position by bearing againstthe cam-edge of the inturned end of the lever 116, and it is only whenthe magazine is empty that the pawl' is in operative position andholdsthe breech-block in its rear position, from whichv it may bereleased by pressing inward aL ainst the sprin upon the projecting endof the transversely movable pin. If it is desired .to fire the lastcartridge before reloading'the magazine, the pin 118 may be pressed torelease .the breech-block. Otherwise, in reloading, the first cartridgeloaded into the magazine' releases the breech-blockl to drive theremaining cartridge in the carrier into the chamber. A cartridge may beforced from thel carrier into the chamber of the barrel by means of thelinger-piece sliding in the slotted arm, so that an eXtra cartridge maybe fed into the magazine.

The gun may be taken down by pullingout the .finger-piece at the forwardend of the magazine and tilting it laterally, when the magazine can beunscrewed by the Same from the receiver and removed together with thefore-arm and the barrel and: extension.

'Ihe trigger 'and sear frame may be removed from the receiver byunscrewing the fastening-screws, and the breech-block may be slid out ofthe forward end of the receiver when the gun is taken down. l

Other modes of applying the principle of my invention may be employedfor the mode' hereinexplained. Change may therefore be 'made as regardsthe mechanism thus' dis- .openings, a trigger and sear carrying framedetachably secured between said side-walls, a magazine tube having itsrear end detachably secured in an opening 'in said front wall, and abarrel4 and extension slidable in the top o-f saidframe and through saidfront wally and having a slidable connection upon said magazine-tube.

2. In an integral fire arm, a receiver frame comprising a ,top ofsubstantially cy.- lindricali outline and Hat side-walls and havingtangs at its rear end for attaching it to the stock and aforward wallformed with lan arched upper opening and a screwthreaded lower opening,a trigger, carrier and sear carrying frame detachably secured betweenthe rear portions of said side-walls in the open lower side of the same,a magazine tube having its rear screw-threaded end secured inthethreaded opening of the frontwall of the receiver,va barrel-extensionslidable in the top of the receiver, -a barrel having' its rearendsecured to said extension, a

collar-bracket secured to said barrel and sliding upon saidmagazine-tube, and a coiled action spring upon said tube and bearingagainst said collar-bracket to fo-rce the same forward.

3. In a irearm, a receiver, a barrel formed with a rearward extensionslidable in said receiver-,and formed at the rear end of its edge with acam-bulge, a breech-block slidablev within the receiver and barrel eX-tension and formed withv a notch in its forward end, separate 'meansconnected to said barrel and block for automatically drawing themforward, and a locking bolt formed with a cam adapted to be engaged bysaid cam-bulge to be depressed by the same and with a shoulder adaptedto engage said notch and having a spring for forcing it upward. y 4C. Ina -rearm, a receiver, a barrel having an extension Vat its rear endslidable in said `receiver and formed with a recess in the inner side ofits top, a breech-block slidl able in said receiver and extension andformed with a longitudinal bore having an enlargement opening toregister with said recess when the extension and block are in theirforward positions a bolt rotatable in said bore and provide with aneccentric block in said enlargement capable of engaging the recess inthe extension and with a projecting rear end having oblique flanges,fingers projecting from the rear end of the receiver to have their endsengage said flanges to rotate the bolt, and a torsion spring connectedto rotate said bolt.

5. In a fire-arm, a receiver, a barrel having an extension at its rearend slidable in said receiver, a breech-block slidable in said receiverand extension, a firing-pin slidable in said block and formed with ashoulder, a spring forcing said pin forward, a bolt rotatable in saidblock, and provided with a cam-lug adapted to engage the shoulder of thefiring-pin and with a rearwardly projecting end having oblique flanges,fingers projecting from the rear end of the receiver to have their endsengage said flanges to rotate the bolt, and a torsion spring connectedto said bolt to rotate it in the opposite direction. t v

6. In a fire-arm, a receiver having a carrier-chamber in its forwardportion formed with an open bottom, a magazine having its discharge endopening into said chamber, -a barrel in said receiver, a longitudinallyslotted carrier-arm pivoted at its rear end to tilt in saidcarrier-chamber, and a fingerpiece sliding in said slotted arm andformed with a stop against which the head of a cartridge may bear,whereby a cartridge may be manually inserted into the chamber of thebarrel.

7. In a fire-arm, a slidable breech-block, a firing-pin slidable in saidblock and having a spring for throwing it forward and formed with aforwardly-facing shoulder projecting at the under side of saidbreechblock, a substantially vertically guided sear formed with aSear-shoulder upon its upper end for engaging the shoulder of thefiring- -pin and a shoulder at its rear edge, a. spring bearing upwardupon said sear a trigger having a spring for throwing its free pullingend forward and a forwardly-extending arm formed with a bore having aslot at its forward end, a spring-actuated plunger in said bore andformed' with a nose at its forward end to engage the rear shoulder ofthe sear and with a web slidable in said slot, and a rigid pin againstwhich said web abuts.

8. In a fire-arm, a receiver, a barrel having an extension slidable insaid receiver, a breech-block slidable in said receiver and extensionand formed with a lnotch at its rear end, means for automaticallydrawing said extension forward, means maecla forl automatically movingsaid breech-block forward, a lmagazine-tube enterin the for-l wardend ofsa1d receiver and havin means forffeedin the cart-ridges rearwar lacarrier in sai receiver for feedin cartridges to the' barrel, a leverfulcrumed ceiver and having an end formed with a camsurface projectingyinto` the rear end of the magazine tube, anda pawl arranged in .thepath of the notch in the breech-block to en.-

gage the same and connected to said lever, to

e disengaged from said notch when the cam-surface is engagedand'actuated by a cartridge in the end of the magazine.

9. In a fire-arm, a receiver, a barrel and extension slidable in saidreceiver, a magazine-tube having its rear end screwed into said receivera ore-arm having its forward portion 'fitted upon said tube, a.V collarbear- .ing against the forward end of said forearm and havin means forclamping-it upon the tube, a co ar-bracket secured to the barrel andslidable upon the magazine-tube, an action-spring around said tube andbearing against a flange upon the same and against the collar-bracket, afollower and spring within said tube, a plug closing the outer end ofsaid tube, and a finger-piece slidable in said plug and adapted to belatarally swung to engage said plug and tu in the resovv 10. In afire-arm, a receiver, a barrel hav- Y ing an extension at its rear endslidable in said receiver and said extension formed with a recess in theinner side of its top and with an oblique edge at its rear corner, abreechblock slidable in said receiver and extension and formed with alongitudinal bore having an enlar ement opening to register with saidrecess w en the extension and block are in their forward positions, abolt rotatable in said bore and provided with an eccentric block in saidenlargement capable of engaging the recess in the extension and formedwith an oblique shoulder and said bolt also provided with a projectingrear end having oblique flanges, fingers projecting from the rear end ofthe receiver to have their ends engage said flanges to rotate the'bolt,and a torsion spring connected to rotate said bolt.

11. In a re-arm, a receiver, a barrel having an extension at its rearend slidable in said receiver, a breech-block slidable in said receiverand extension, a firing-pin slidable in said block and formed with ashoulder, a spring forcing said pin forward, a bolt rotatable in saidblock, and provided with a cam-lug adapted to engage the shoulder of thefiring-pin, means for rotating said bolt at the rear eXtreme of itsstroke to partlywithdraw said firing-pin, and a-torsion spring connectedto said bolt to rotate it in the opposite direction.

12. In a fire-arm, a receiver, a barrel, a magazine parallel with saidbarrel, a breechblock slidable in said receiver and having moved meansfor automatically throwing it forward, a stop arranged said block whenlin its re to engage and hold armost positionfand 5 a lever ulcrumed insaid receiver and having a camat onel end rear end of the magazinprojecting into the e to be engaged and by the contents of the same, andoo nneeted at the other end to said stop to disengage the same when somoved.

HENRY B. FEBIGER. Witnesses JNOJC. FEBIGER, '.Tr., W. W. YOUNG.

